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Fix CMake ordering to find correct compiler:

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* `CMAKE_C_COMPILER` and `CMAKE_CXX_COMPILER` must be defined
  before `project`. However, it will clear `CMAKE_BUILD_TYPE`.
  Use `CACHE` variables and reorder some code to work around
  these constraints.
* Also correct a couple of copy paste errors.
This commit is contained in:
Edward Hennis
2017-02-08 19:19:17 -05:00
committed by seelabs
parent 17726c2cac
commit 2c2b0eb2f1
2 changed files with 49 additions and 23 deletions
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43
Builds/CMake/CMakeFuncs.cmake
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@@ -33,16 +33,16 @@ macro(parse_target)
if (${cur_component} STREQUAL gcc)
if (DEFINED ENV{GNU_CC})
set(CMAKE_C_COMPILER $ENV{GNU_CC})
elseif ($ENV{CXX} MATCHES .*gcc.*)
set(CMAKE_CXX_COMPILER $ENV{CC})
elseif ($ENV{CC} MATCHES .*gcc.*)
set(CMAKE_C_COMPILER $ENV{CC})
else()
find_program(CMAKE_C_COMPILER gcc)
endif()
if (DEFINED ENV{GNU_CXX})
set(CMAKE_C_COMPILER $ENV{GNU_CXX})
set(CMAKE_CXX_COMPILER $ENV{GNU_CXX})
elseif ($ENV{CXX} MATCHES .*g\\+\\+.*)
set(CMAKE_C_COMPILER $ENV{CC})
set(CMAKE_CXX_COMPILER $ENV{CXX})
else()
find_program(CMAKE_CXX_COMPILER g++)
endif()
@@ -51,16 +51,16 @@ macro(parse_target)
if (${cur_component} STREQUAL clang)
if (DEFINED ENV{CLANG_CC})
set(CMAKE_C_COMPILER $ENV{CLANG_CC})
elseif ($ENV{CXX} MATCHES .*clang.*)
set(CMAKE_CXX_COMPILER $ENV{CC})
elseif ($ENV{CC} MATCHES .*clang.*)
set(CMAKE_C_COMPILER $ENV{CC})
else()
find_program(CMAKE_C_COMPILER clang)
endif()
if (DEFINED ENV{CLANG_CXX})
set(CMAKE_C_COMPILER $ENV{CLANG_CXX})
set(CMAKE_CXX_COMPILER $ENV{CLANG_CXX})
elseif ($ENV{CXX} MATCHES .*clang.*)
set(CMAKE_C_COMPILER $ENV{CC})
set(CMAKE_CXX_COMPILER $ENV{CXX})
else()
find_program(CMAKE_CXX_COMPILER clang++)
endif()
@@ -105,6 +105,14 @@ macro(parse_target)
endif()
endwhile()
# Promote these values to the CACHE, then unset the locals
# to prevent shadowing.
set(CMAKE_C_COMPILER ${CMAKE_C_COMPILER} CACHE FILEPATH
"Path to a program" FORCE)
unset(CMAKE_C_COMPILER)
set(CMAKE_CXX_COMPILER ${CMAKE_CXX_COMPILER} CACHE FILEPATH
"Path to a program" FORCE)
unset(CMAKE_CXX_COMPILER)
if (release)
set(CMAKE_BUILD_TYPE Release)
@@ -112,9 +120,25 @@ macro(parse_target)
set(CMAKE_BUILD_TYPE Debug)
endif()
# ensure that the unity flags are set and exclusive
if (NOT DEFINED unity OR unity)
# Default to unity builds
set(unity true)
set(nonunity false)
else()
set(unity false)
set(nonunity true)
endif()
if (NOT unity)
set(CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE}Classic)
endif()
# Promote this value to the CACHE, then unset the local
# to prevent shadowing.
set(CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE} CACHE INTERNAL
"Choose the type of build, options are in CMAKE_CONFIGURATION_TYPES"
FORCE)
unset(CMAKE_BUILD_TYPE)
endif()
endmacro()
@@ -149,8 +173,11 @@ macro(setup_build_cache)
ReleaseClassic)
endif()
# Promote this value to the CACHE, then unset the local
# to prevent shadowing.
set(CMAKE_CONFIGURATION_TYPES
${CMAKE_CONFIGURATION_TYPES} CACHE STRING "" FORCE)
unset(CMAKE_CONFIGURATION_TYPES)
endmacro()
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